... the structural component being cast and its mold. Models of nucleation and growth represent the evolution of the microstructure, following a multinodular solidification theory with independent nucleation of graphite and austenite and a dendritic growth of austenite. The resulting formulation is solved using...

.... At the macroscopic level, different characteristic regimes are identified in the measured shear and normal stress-strain curves: elastic I, elastic II, nucleation, softening, and crushing. The first elastic regime shows a conventional linear elastic response, whereas the second elastic regime is nonlinear due...

... serves as a cutoff between those wavelengths that lead to gap nucleation in the troughs and those that lead to gap nucleation in the crests. The conditions for gap nucleation in the mold surface troughs are examined since a corresponding increase in contact pressure at the crests signals the possibility...

... and strength, and are of great interest to researchers from both atomistic and continuum points of view. In this paper, we intend to develop a continuum theory of fracture nucleation in single-walled carbon nanotubes by incorporating interatomic potentials between carbon atoms into a continuum constitutive...

...L. G. Hector,, Jr.; J. A. Howarth; O. Richmond, Mem. ASME; W.-S. Kim A theoretical model that predicts the time and position of gap nucleation along the metal-shell interface during solidification of a pure metal on a sinusoidal mold surface is presented. The ratio of the mold surface amplitude...

...F. Yigit; L. G. Hector,, Jr. A theoretical model of the gap nucleation process during pure metal solidification on a deformable mold of finite thickness is presented. Both surfaces of the mold follow a sinusoidal lay for which the ratio of the amplitude to the wavelength, or aspect ratio, is much...

... that the mold surface topography affects gap nucleation at the mold-shell interface and the uniformity of the shell, we explore how the wavelength of the upper mold surface impacts the evolution of P tr for specific material combinations and process parameters. For this purpose, the mold-shell materials...